Radiation Pressure

Radiation pressure is the pressure exerted upon any surface exposed to electromagnetic radiation. If absorbed, the pressure is the power flux density divided by the speed of light. If the radiation is totally reflected, the radiation pressure is doubled. For example, the radiation of the Sun at the Earth has a power flux density of 1,370 W/m2, so the radiation pressure is 4.6 µPa (absorbed).

Read more about Radiation PressureDiscovery, Theory, Solar Sails, Effect On GPS Satellites, Radiation Pressure in Acoustics, Laser Cooling

Other articles related to "radiation pressure, radiation, pressure":

Pioneers Anomaly - Proposed Explanations - The Deceleration Model - Thermal Radiation Pressure
... A real deceleration not accounted for in the model could result from asymmetrical thermal radiation pressure of the heat from the spacecraft (the effect cannot be from the radiation pressure of ... Possibilities include the asymmetrical radiation of heat from the RTGs (See Radioisotope rocket) or the spacecraft electronics ... radiate symmetrically, some of their radiation will reflect from the back of the spacecraft's dish-like main antenna, causing a recoil like sunlight striking a solar sail ...
Radiation Pressure - Laser Cooling
... The radiation pressure on the atom slows movement in a particular direction until the Doppler effect moves out of the frequency range of the element, causing ...
Eddington Luminosity - Derivation - Different Limits For Different Materials
... The derivation above for the outward light pressure assumes a hydrogen plasma ... In other circumstances the pressure balance can be different than it is for hydrogen ... (an alpha particle), with nearly 4 times the mass of a proton, while the radiation pressure would act on 2 free electrons ...
Adolfo Bartoli
... was an Italian physicist, who is best known for introducing the concept of radiation pressure from thermodynamical considerations ... Maxwell found out that the existence of tensions in the ether, in other words radiation pressure, follows from his electromagnetic theory ... In 1876 Bartoli derived the existence of radiation pressure from thermodynamics ...
Stellar Engine - Class A (Shkadov Thruster)
... would balance gravitational attraction towards and radiation pressure away from the star ... Since the radiation pressure of the star would now be asymmetrical, i.e ... more radiation is being emitted in one direction as compared to another, the 'excess' radiation pressure acts as net thrust, accelerating the star in the direction of the hovering statite ...

Famous quotes containing the words pressure and/or radiation:

    Destiny is an absolutely definite and inexorable ruler. Physical ability and moral determination count for nothing. It is impossible to perform the simplest act when the gods say “no.” I have no idea how they bring pressure to bear on such occasions; I only know that it is irresistible.
    Aleister Crowley (1875–1947)

    There are no accidents, only nature throwing her weight around. Even the bomb merely releases energy that nature has put there. Nuclear war would be just a spark in the grandeur of space. Nor can radiation “alter” nature: she will absorb it all. After the bomb, nature will pick up the cards we have spilled, shuffle them, and begin her game again.
    Camille Paglia (b. 1947)